Not very sure about how many and which part. 14-16 ppl start as a batch and clearly not all of them graduate. Some batches have 10 left.. Only school knows the figure I guess. Many coudlnt make the first 8months. Later on, you can repeat one session by paying 4400dhs for mcc and a lot more for last phase of the course.
Depends on your performance but at the same time the evaluation isn't very objective. Instructors have all the power and if complain about it you gonna have a hard time since they say you have an attitude problem which will follow you till air arabia.